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COM+ System Application

 

General Information

None at this time


Windows 8

Default Description

Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

None at this time.

Default Startup Type

OS SP0
Windows 8 x86 Manual (Started)
Windows 8 x64 Manual (Started)
Windows 8 Pro x86 Manual (Started)
Windows 8 Pro x64 Manual (Started)
Windows 8 Enterprise x86 Manual (Started)
Windows 8 Enterprise x64 Manual (Started)

Service Names

Service Name (registry): COMSysApp
Display Name: COM+ System Application

Default Path and Command Line Options

C:\Windows\system32\dllhost.exe /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235}

Log On As

Account: Local System account

Dependencies

Note: No dependencies are listed for any service in the WDP build I used to draft this information.

Windows 7

Default Description

Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

This service is started upon system boot, but shortly after, it stops if not used.

Default Startup Type

OS SP0 SP1
Windows 7 Starter Manual Manual
Windows 7 Home Basic Manual Manual
Windows 7 Home Premium Manual Manual
Windows 7 Professional Manual Manual
Windows 7 Ultimate Manual Manual
Windows 7 Enterprise Manual Manual

Service Names

Service Name (registry): COMSysApp
Display Name: COM+ System Application

Default Path and Command Line Options

C:\Windows\system32\dllhost.exe

Log On As

Account: Local System account

Dependencies

What service COM+ System Application needs to function properly:

What other service require COM+ System Application to function properly:

  • None (S, HB, HP, P, U, E)

Windows Vista

Default Description

Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

With Windows Vista Retail version, this service listed COM+ Event System and System Event Notification Service as depending on this service. This has been corrected in Service Pack 1.

Default Startup Type

OS SP0 SP1 SP2
Vista Home Basic Manual Manual Manual (Started)
Vista Home Premium Manual Manual Manual (Started)
Vista Business Manual Manual Manual (Started)
Vista Ultimate Manual Manual Manual (Started)
Vista Enterprise Manual Manual Manual (Started)

Service Names

Service Name (registry): COMSysApp
Display Name: COM+ System Application

Default Path and Command Line Options

C:\Windows\system32\dllhost.exe

Log On As

Account: Local System Account

Dependencies

What service COM+ System Application needs to function properly:

What other service require COM+ System Application to function properly:

  • None (HB, HP, B, U)

Windows XP Pro x64

Default Description

Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

You will receive, in the Event Log, an entry from “DCOM” complaining about not having this service running if disabled. If set to manual, many services report to it, so it will start anyway. For the fun of it, check:

“C:\Program Files\ComPlus Applications”

On your system, see if you have any installed “COM+” Applications. This service is required for System Event Notification.

Default Startup Type

OS SP0 SP1 SP2
XP Pro x64  ?  ? Automatic

Service Names

Service Name (registry): COMSysApp
Display Name: COM+ System Application

Default Path and Command Line Options

C:\WINDOWS\system32\dllhost.exe

Log On As

Account: Local System Account

Dependencies

What service COM+ System Application needs to function properly:

What other service require COM+ System Application to function properly:

  • None

Windows XP

Default Description

Manages the configuration and tracking of Component Object Model (COM)+-based components. If the service is stopped, most COM+-based components will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Additional Information

You will receive, in the Event Log, an entry from “DCOM” complaining about not having this service running if disabled. I am only aware of Visual Studio 6 Enterprise that uses COM+, but if set to manual, many services report to it, so it will start anyway. For the fun of it, check:

“C:\Program Files\ComPlus Applications”

On your system, see if you have any installed “COM+” Applications. If not, you can probably disable this service with no side effects (besides the Event Log complaining upon reboots).

Default Startup Type

OS SP0 SP1 SP2 SP3
XP Home Manual Manual Manual Manual
XP MCE 2005 Manual Manual Manual Manual
XP Pro Manual Manual Manual Manual
XP Tablet PC 2005 Manual Manual Manual Manual

Service Names

Service Name (registry): COMSysApp
Display Name: COM+ System Application

Default Path and Command Line Options

C:\WINDOWS\system32\dllhost.exe

Log On As

Account: Local System Account

Dependencies

What service COM+ System Application needs to function properly:

What other service require COM+ System Application to function properly:

  • None (H, M, P, T)

Additional Reading

None at this time.